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Diffstat (limited to 'src/GeneralizedPolynomial-Uniform/Lagrange-maximum-degree/README')
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diff --git a/src/GeneralizedPolynomial-Uniform/Lagrange-maximum-degree/README b/src/GeneralizedPolynomial-Uniform/Lagrange-maximum-degree/README new file mode 100644 index 0000000..88f3af7 --- /dev/null +++ b/src/GeneralizedPolynomial-Uniform/Lagrange-maximum-degree/README @@ -0,0 +1,62 @@ +$Header$ + +This directory contains code for Lagrange polynomial interpolation, +using the maximum-degree definition for multiple dimensions. + +makefile + This has targets to create the subdirectories for the + Maple-generated coefficient files, and to run Maple to + generated those files. + +make.code.defn + This tells the Cactus build system which files to compile. + +[123]d.maple + These files contain the Maple code to generate the interpolation + coefficients. + +fns.maple + These files define the interpolation functions, coefficients, etc, + for the Maple code in [123]d.maple + +[123]d.cube.order?.smooth?.c + These files are the individual cases for the interpolation. + Each file defines a separate function. Each file just #defines + a bunch of macros, then #includes "../template.c" to get the + actual interpolation code. Unfortunately, the ISO C standard + only guarantees 31 characters for function names (in fact, it + doesn't even guarantee that for external names -- they may be + limited by a system linker -- but I quietly ignore that and + assume I can use 31), so the functions are named in a somewhat + cryptic manner: + 123456789 123456789 123456789 1 + LocalInterp_U_LagrMD_1dcube_10 + LocalInterp_U_LagrMD_1dcube_20 + LocalInterp_U_LagrMD_1dcube_30 + LocalInterp_U_LagrMD_1dcube_40 + LocalInterp_U_LagrMD_1dcube_50 + LocalInterp_U_LagrMD_1dcube_60 + LocalInterp_U_LagrMD_2dcube_10 + LocalInterp_U_LagrMD_2dcube_20 + LocalInterp_U_LagrMD_2dcube_30 + LocalInterp_U_LagrMD_2dcube_40 + LocalInterp_U_LagrMD_3dcube_10 + LocalInterp_U_LagrMD_3dcube_20 + LocalInterp_U_LagrMD_3dcube_30 + LocalInterp_U_LagrMD_3dcube_40 + The naming convention is as follows (eg for the last function) + LocalInterp name of this thorn + U these functions are all for the + CCTK_InterpLocalUniform() API + LagrMD these functions are all for the + "Lagrange polynomial interpolation (maximum degree)" + interpolation operator + 3d this function does 3-d interpolation + cube this function uses a cube-shaped + interpolation molecule + 4 this function does 4th order interpolation + 0 this function does smoothing=0 interpolation + +all_prototypes.h + This file contains C prototypes for each of the functions + in [123]d.cube.order?.smooth0.c. |